Age-related episodic memory decline and the role of amyloid-β: a systematic review.

Unlabelled: Aging has been associated with the functional decline of episodic memory (EM). Unanswered questions are whether the decline of EM occurs even during healthy aging and whether this decline is related to amyloid-β (Aβ) deposition in the hippocampus.

Objective: The main purpose of this study was to investigate data on the relationship between the age-related EM decline and Aβ deposition.

Spatial contrast sensitivity: effects of reliability, test-retest repeatability and sample size using the Metropsis software.

Purpose: The goals of the study were to further assess contrast sensitivity to (1) investigate the existence of monocular vs. binocular differences; (2) observe possible differences between sample sizes; (3) investigate the effects of test-retest repeatability.

Methods: Contrast sensitivity measurements were obtained by presenting eight horizontal sine-wave gratings (ranging from 0.

Comparison of color discrimination in chronic heavy smokers and healthy subjects.

Cigarette smoke is probably the most significant source of exposure to toxic chemicals for humans, involving health-damaging components, such as nicotine, hydrogen cyanide and formaldehyde. The aim of the present study was to assess the influence of chronic heavy smoking on color discrimination (CD). All subjects were free of any neuropsychiatric disorder, identifiable ocular disease and had normal acuity.

Neurostimulation for cognitive rehabilitation in stroke (NeuroCog): study protocol for a randomized controlled trial.

Background: Stroke patients may present severe cognitive impairments, primarily related to executive functions. Transcranial direct current stimulation has shown promising results, with neuromodulatory and neuroplastic effects. This study is a double-blind, sham-controlled clinical trial aiming to compare the long-term effects of stimulation in two different cognitive regions after a stroke.